How can I find valid Workspace Product Keys to configure for liferay.workspace.product in gradle.property?

Issue

What "product keys" are valid to configure for the liferay.workspace.product= property in gradle.properties?
How can I select the proper "product key" value for Liferay Workspace?

For Quarterly Releases:
There is a new index file: releases.json
↳ Example: liferay.workspace.product=dxp-2024.q1.1
For 7.4 and below:
A centralized repository page that shows the valid "product key" values for Liferay DXP versions prior to Quarterly Releases can be found in the product_info.json
↳ Example: liferay.workspace.product=dxp-7.3-sp3
A more reliable way to check product key values would be via blade itself:
blade init --list --all

To filter for DXP versions only, you can modify it as follows:
blade init --list --all | grep dxp